A single ancient zelkova stands at the center of the plaza, its branches shading the benches below.

The old park's zelkovas formed a shaded avenue along the river.

The park's oldest Caucasian zelkova stood as a silent witness to centuries of change.

City planners chose to line the new boulevard with Caucasian zelkovas to create a resilient and stately canopy.

Researchers have shown that zelkovamycin inhibits several gram-positive pathogens in vitro.